Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af5325c1f58217c…

MALICIOUS

PDF

90.3 KB Created: 2022-04-05 17:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e509542f045b6ff2aed4e8b15c9ca7aa SHA-1: 18fa417e775090f4447dee9ff00a3871e78bce8d SHA-256: 4af5325c1f58217ccf8818c5598afcb39d8e7175e55561490fec4c426f3957bc
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://fecuq.co.za/YmrXLWy8?keyword=what%20is%20the%20concept%20of%20history%20of%20education PDF link annotation
    • https://libuxematofep.weebly.com/uploads/1/3/1/0/131070581/xorakuludatipes_nuneziposufofe_xugewiwoxuzome.pdfIn PDF document text
    • https://adsbudget.net/userfiles/file/nekasofikumelubu.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/eo11j9ujhn1htt0ji26a585st2/mukunexixi.pdfIn PDF document text
    • https://biwozatilajatem.weebly.com/uploads/1/3/4/6/134636438/6a6ca7f10.pdfIn PDF document text
    • https://tezolujekile.weebly.com/uploads/1/3/4/4/134497819/6933152.pdfIn PDF document text
    • https://mulidugegobivim.weebly.com/uploads/1/3/4/3/134318636/7277f75a79.pdfIn PDF document text
    • https://vugogirofezufus.weebly.com/uploads/1/3/4/3/134355312/259a3.pdfIn PDF document text
    • https://www.t-med.kz/app/webroot/js/kcfinder/upload/files/vumuzarisu.pdfIn PDF document text
    • https://gekubele.weebly.com/uploads/1/3/2/6/132683169/jexotalunonojino.pdfIn PDF document text
    • https://gulapizebulo.weebly.com/uploads/1/3/1/0/131070336/f4de2ce179816b8.pdfIn PDF document text
    • https://nk-sostanj.si/files/file/27993371442.pdfIn PDF document text
    • http://xlyz195.com/upload/file/86600394465.pdfIn PDF document text
    • https://aviatroglo.fr/IMG/file/70277214165.pdfIn PDF document text
    • https://linazigamatamab.weebly.com/uploads/1/3/1/8/131856602/gobofizimek_pavewenoda.pdfIn PDF document text
    • http://ichieh.tw/uploads/files/202202161706502427.pdfIn PDF document text
    • https://xedatuvigino.weebly.com/uploads/1/3/4/5/134580066/1350094.pdfIn PDF document text
    • https://sefenavimeta.weebly.com/uploads/1/3/4/8/134885596/wafeferelidunawu.pdfIn PDF document text
    • http://servetgumrukleme.com/kcfinder/upload/files/5810427443.pdfIn PDF document text
    • http://knauto.com/upload/file///31730015409.pdfIn PDF document text
    • https://mavibogixuridez.weebly.com/uploads/1/3/4/6/134635512/2809055.pdfIn PDF document text
    • http://mycannapedia.com/FCKFiles/file/zefonuf.pdfIn PDF document text
    • https://minsk.elilink.com/upload/editor/files/kirilugexekeb.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5B 16752 bytes
SHA-256: 9709731d2aa3875c02f38037663ec8915553d539cd5257f40d6ce11255d5b6b2
font_01_sfnt_off00012a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A6D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14284 10880 bytes
SHA-256: 63497862e481d9d4bd0ae64122e2fec7f2b4e54c06d06dd0a53f22f91e8c646b

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